//
// Copyright 2011-2015 Jeff Bush
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

#include <string.h>
#include <stdlib.h>

volatile unsigned int next_alloc = 0x500000;

void *sbrk(ptrdiff_t size)
{
    void *base_ptr = (void*) __sync_fetch_and_add(&next_alloc, size);
    if (size > 0)
        memset(base_ptr, 0, size);

    return base_ptr;
}
